Drivers Ed Chapter 5 Review
Mar 26, 2015
Drivers Ed
Chapter 5 Review
What is the force that pulls things toward the center of the earth?
• gravity
If you place a filled roof-top carrier on a car, what happens to the center of gravity?
• raises it
The energy of motion is called _____.
• kinetic energy
If a car’s speed doubles, the distance it will take to stop is increased by ____.
• 4
What action keeps the tires on the road?
• friction
What do tire treads have to do with water flow?
• pushes water away from the tire
What do shock absorbers do?
• help create traction
A car driven around a curve has a natural tendency to go in a ____ path.
• straight
The higher your speed, the more _______ is required.
• traction
perception + reaction + braking distance = ____
• total stopping distance
What happens to braking distance as speed doubles?
• it doubles
What does the 4 second rule mean?
• it’s the time it takes you to react to a traffic event
What does the second collision consist of?
• the occupants hitting the inside of the car after the initial collision
Is a seatbelt and active or passive restraint?
• active
What is a restraint called that doesn’t require the driver to handle it?
• passive restraint
The point at which all weight is evenly balanced is known as the
• center of gravity
What does adding weight to the top of a car do to the stability?
• makes it worse
If a tire is underinflated, the only part that touches the road is the
• outside edges
tires, shock absorbers, and steering systems all affect
• traction
Which freezes first – the bridge, or the road?
• bridge
When is the best time to adjust your speed when maneuvering a curve?
• before the curve
If your brakes are worn unevenly, your car will ____ during a sudden stop.
• pull to one side
The relationship of vehicle weight to force of impact is
• double the weight, double the impact
What are 2 things that help you maintain good traction?
• car condition and road conditions
what is the best type of surface to drive on?
• clean, dry, level concrete
What are the 4 factors that affect the control of your car in a curve.
• speed• banked curves• sharpness of curve• load
Explain split/divided traction.
• ½ used for turning, ½ for braking
What are the 4 factors that affect braking distance?
• speed• road surface• hills• load
What are the 3 factors that determine the force of impact?
• speed• weight• distance between impact and stop
What is the PA child safety law?
• children under 4 – federally approved safety seats; 4-7 booster seat; 8-17 must be buckled